Home / 49,148.40-73,722.60-12,212.40

Finding the Fourth Proportional to 49,148.40, 73,722.60 and 12,212.40

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Solution

The fourth proportional to 49,148.40, 73,722.60 and 12,212.40 is: 18,318.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,148.40 : 73,722.60 = 12,212.40 : x
  2. Step 2: Convert to fraction form
    49,148.40/73,722.60 = 12,212.40/x
  3. Step 3: Cross multiply
    49,148.40x = 73,722.60 × 12,212.40
  4. Step 4: Simplify right side
    49,148.40x = 900,329,880.24
  5. Step 5: Solve for x
    x = 900,329,880.24/49,148.40
  6. Step 6: Final answer
    x = 18,318.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.